*** empty log message ***

From-SVN: r719

diff --git a/gcc/config/mips/mips.c b/gcc/config/mips/mips.c
index 821caaf80d1434115512a4729920eea680fdf72a..5d8ce773978ee6520e0916e8a786ad7ba33f00ec 100644 (file)
--- a/gcc/config/mips/mips.c
+++ b/gcc/config/mips/mips.c
@@ -1951,6 +1951,7 @@ output_block_move (insn, operands, num_regs)
   int align            = INTVAL (operands[3]);
   int num              = 0;
   int offset           = 0;
+  int use_lwl_lwr      = FALSE;
   int i;
   rtx xoperands[10];
 
@@ -2013,6 +2014,23 @@ output_block_move (insn, operands, num_regs)
          bytes -= UNITS_PER_WORD;
        }
 
+      else if (bytes >= UNITS_PER_WORD && TARGET_GAS)
+       {
+#if BYTES_BIG_ENDIAN
+         load_store[num].load     = "lwl\t%0,%1\n\tlwr\t%0,%2";
+         load_store[num].load_nop = "lwl\t%0,%1\n\tlwr\t%0,%2%#";
+         load_store[num].store    = "swl\t%0,%1\n\tswr\t%0,%2";
+#else
+         load_store[num].load     = "lwl\t%0,%2\n\tlwr\t%0,%1";
+         load_store[num].load_nop = "lwl\t%0,%2\n\tlwr\t%0,%1%#";
+         load_store[num].store    = "swl\t%0,%2\n\tswr\t%0,%1";
+#endif
+         load_store[num].mode = SImode;
+         offset += UNITS_PER_WORD;
+         bytes -= UNITS_PER_WORD;
+         use_lwl_lwr = TRUE;
+       }
+
       else if (bytes >= UNITS_PER_WORD)
        {
          load_store[num].load     = "ulw\t%0,%1";
@@ -2067,27 +2085,43 @@ output_block_move (insn, operands, num_regs)
 
          for (i = 0; i < num; i++)
            {
+             int offset;
+
              if (!operands[i+4])
                abort ();
 
              if (GET_MODE (operands[i+4]) != load_store[i].mode)
                operands[i+4] = gen_rtx (REG, load_store[i].mode, REGNO (operands[i+4]));
 
+             offset = load_store[i].offset;
              xoperands[0] = operands[i+4];
              xoperands[1] = gen_rtx (MEM, load_store[i].mode,
-                                     plus_constant (src_reg, load_store[i].offset));
+                                     plus_constant (src_reg, offset));
+
+             if (use_lwl_lwr)
+               xoperands[2] = gen_rtx (MEM, load_store[i].mode,
+                                       plus_constant (src_reg, UNITS_PER_WORD-1+offset));
+
              output_asm_insn (load_store[i].load, xoperands);
            }
 
          for (i = 0; i < num; i++)
            {
+             int offset = load_store[i].offset;
              xoperands[0] = operands[i+4];
              xoperands[1] = gen_rtx (MEM, load_store[i].mode,
-                                     plus_constant (dest_reg, load_store[i].offset));
+                                     plus_constant (dest_reg, offset));
+
+
+             if (use_lwl_lwr)
+               xoperands[2] = gen_rtx (MEM, load_store[i].mode,
+                                       plus_constant (dest_reg, UNITS_PER_WORD-1+offset));
+
              output_asm_insn (load_store[i].store, xoperands);
            }
 
          num = 0;              /* reset load_store */
+         use_lwl_lwr = FALSE;  /* reset whether or not we used lwl/lwr */
        }
     }